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1.
Artigo em Inglês | MEDLINE | ID: mdl-38588684

RESUMO

BACKGROUND: The association between the glycaemic index and the glycaemic load with type 2 diabetes incidence is controversial. We aimed to evaluate this association in an international cohort with diverse glycaemic index and glycaemic load diets. METHODS: The PURE study is a prospective cohort study of 127 594 adults aged 35-70 years from 20 high-income, middle-income, and low-income countries. Diet was assessed at baseline using country-specific validated food frequency questionnaires. The glycaemic index and the glycaemic load were estimated on the basis of the intake of seven categories of carbohydrate-containing foods. Participants were categorised into quintiles of glycaemic index and glycaemic load. The primary outcome was incident type 2 diabetes. Multivariable Cox Frailty models with random intercepts for study centre were used to calculate hazard ratios (HRs). FINDINGS: During a median follow-up of 11·8 years (IQR 9·0-13·0), 7326 (5·7%) incident cases of type 2 diabetes occurred. In multivariable adjusted analyses, a diet with a higher glycaemic index was significantly associated with a higher risk of diabetes (quintile 5 vs quintile 1; HR 1·15 [95% CI 1·03-1·29]). Participants in the highest quintile of the glycaemic load had a higher risk of incident type 2 diabetes compared with those in the lowest quintile (HR 1·21, 95% CI 1·06-1·37). The glycaemic index was more strongly associated with diabetes among individuals with a higher BMI (quintile 5 vs quintile 1; HR 1·23 [95% CI 1·08-1·41]) than those with a lower BMI (quintile 5 vs quintile 1; 1·10 [0·87-1·39]; p interaction=0·030). INTERPRETATION: Diets with a high glycaemic index and a high glycaemic load were associated with a higher risk of incident type 2 diabetes in a multinational cohort spanning five continents. Our findings suggest that consuming low glycaemic index and low glycaemic load diets might prevent the development of type 2 diabetes. FUNDING: Full funding sources are listed at the end of the Article.

2.
Emerg Microbes Infect ; : 2337677, 2024 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-38578315

RESUMO

ABSTRACTPreviously, we have reported a cohort of Japanese encephalitis (JE) patients with Guillain-Barré syndrome. However, the evidence linking Japanese encephalitis virus (JEV) infection and peripheral nerve injury (PNI) remains limited, especially the epidemiology, clinical presentation, diagnosis, treatment, and outcome significantly differ from traditional JE. We performed a retrospective and multicenter study of 1626 patients with JE recorded in the surveillance system of the Chinese Center for Disease Control and Prevention, spanning the years 2016 to 2020. Cases were classified into type 1 and type 2 JE based on whether the JE was combined with PNI or not. A comparative analysis was conducted on demographic characteristics, clinical manifestations, imaging findings, electromyography data, laboratory results, and treatment outcomes. Among 1626 laboratory confirmed JE patients, 230 (14%) were type 2 mainly located along the Yellow River in northwest China. In addition to fever, headache, and disturbance of consciousness, type 2 patients experienced acute flaccid paralysis of the limbs, as well as severe respiratory muscle paralysis. These patients presented a greater mean length of stay in hospital (children, 22 years [range, 1-34]; adults, 25 years [range, 0-183]) and intensive care unit (children, 16 years [range, 1-30]; adults, 17 years [range, 0-102]). The mortality rate was higher in type 2 patients (36/230 [16%]) compared to type 1 (67/1396 [5%]). The clinical classification of the diagnosis of JE may play a crucial role in developing a rational treatment strategy, thereby mitigating the severity of the disease and potentially reducing disability and mortality rates among patients.

3.
Front Oncol ; 14: 1349282, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38469229

RESUMO

Objective: Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare exocrine tumor of the pancreas. The aim of our study is to summarize the clinical features of SPN and to analyze the risk factors for malignant SPN. Methods: From May 2013 to September 2022, patients who were pathologically confirmed to have SPN were retrospectively reviewed. Demographic data, clinical and pathological features, follow-up data were collected and analyzed. To investigate the factors influencing the benign or malignant nature of SPN, we employed logistic regression. Additionally, we utilized Kaplan-Meier curves to depict and analyze the overall prognosis. Results: A total of 195 patients were included, 163 of whom were female and the average age of all patients was 31.7 years old. Among 195 patients, 101 patients (51.8%) had no obvious clinical symptoms and their pancreatic lesions were detected during routine examination. The primary symptom was abdominal pain and distension in 64 cases (32.8%). The maximum diameter of SPN tumors ranged from 1-17 cm (mean 6.19 cm). Forty-eight postoperative complications developed in 43 (22.1%) patients. After a median follow-up duration of 44.5 months, the overall 5-year survival rate was 98.8% and the recurrence rate was 1.5%. Furthermore, we observed a statistically significant difference in the completeness of the tumor capsule between benign and malignant SPN. Conclusion: SPN is associated with a favorable long-term survival after surgery in our large sample size cohort. For malignant SPN, tumor capsule incompleteness is an independent risk factor.

4.
Ecotoxicol Environ Saf ; 273: 116150, 2024 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-38430579

RESUMO

Nickel (Ni), an environmental health hazard, is nephrotoxic to humans, but the exact mechanism is unknown. This study aims to identify whether nephrotoxicity is associated with autophagy. Here, nickel chloride (NiCl2) increased autophagy in TCMK-1 cells. NiCl2 induces autophagy through Akt and AMPK/mTOR pathways. Next, oxidative stress was investigated in NiCl2-induced autophagy. The findings demonstrated that the antioxidant (NAC) or mitochondrial targeted antioxidant (Mito-TEMPO) attenuated NiCl2-induced autophagy, reversed the influence on AMPK-mTOR and Akt pathways. Additionally, our study examined the role of autophagy in NiCl2-induced nephrotoxicity. Autophagy inhibition with 3-MA could inhibit cell viability and increase apoptosis in the TCMK-1 cells, however, autophagy promotion with rapamycin relieved cytotoxicity and decreased apoptosis. Additionally, co-treatment with Z-VAD-FMK reduced cytotoxicity, but did not affect autophagy. Besides, NiCl2 can increase the level of mitophagy in vivo and vitro. Mitophagy inhibition could inhibit cell viability and increase apoptosis in the TCMK-1 cells, whereas, promotion of mitophagy could increase cell viability and decrease apoptosis. In summary, above-mentioned results showed that NiCl2 induces autophagy in TCMK-1 cells through oxidative stress-dependent AMPK/AKT-mTOR pathway, autophagy plays a role in reducing NiCl2-induced renal toxicity, and a major mechanism in autophagy's inhibitory effect on NiCl2-induced apoptosis may be mitophagy.


Assuntos
Antioxidantes , Proteínas Proto-Oncogênicas c-akt , Humanos , Antioxidantes/farmacologia , Níquel/toxicidade , Proteínas Quinases Ativadas por AMP/metabolismo , Serina-Treonina Quinases TOR/metabolismo , Apoptose , Autofagia
5.
Chem Biol Interact ; 394: 110975, 2024 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-38552765

RESUMO

Nickel (Ni) and its compounds are common, widely distributed components of hazardous waste in the chemical industry. Excessive exposure to Ni can cause kidney damage in humans and animals. We investigated the impact of Ni on renal mitochondria using in vivo and in vitro models of Ni nephrotoxicity, and explored the Ni nephrotoxic mechanism. We showed that nickel chloride (NiCl2) damaged the renal mitochondria, causing mitochondrial swelling, breakage of the mitochondrial cristae, increased levels of mitochondrial reactive oxygen species (mt-ROS), and depolarization of the mitochondrial membrane potential (MMP). The levels of the mitochondrial respiratory chain complexes I-IV were reduced in the kidneys of mice treated with NiCl2. In addition, NiCl2 treatment inhibited mitochondrial biogenesis in renal cells by down-regulating mRNA and the protein expression of TFAM, PGC-1α, and NRF1. Moreover, NiCl2 reduced the levels of the proteins involved in mitochondrial fusion, including Mfn1 and Mfn2, while significantly augmenting the levels of the proteins Fis1 and Drip1 involved in mitochondrial fission in renal cells. Taken together, these results suggested that NiCl2 inhibited mitochondrial biogenesis, suppressed mitochondrial fusion, and promoted mitochondrial fission, resulting in mitochondrial dysfunction in renal cells, ultimately causing renal injury. This study provided novel insights into the mechanisms of nephrotoxicity of Ni and new ideas for the development of targeted treatments for Ni-induced kidney injury.

6.
Int Immunopharmacol ; 131: 111837, 2024 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-38471365

RESUMO

S-adenosylmethionine (SAM) was a methyl donor for modifying histones, which had crucial roles in lipid accumulation, tissue injury, and immune responses. SAM fluctuation might be linked to variations in histone methylation. However, the underlying molecular mechanisms of whether the SAM diet influenced the immune response via histone modification remained obscure. In this study, we utilized the Caenorhabditis elegans as a model to investigate the role of SAM diet in innate immunity. We found that 50 µM SAM increased resistance to Gram-negative pathogen Pseudomonas aeruginosa PA14 by reducing the bacterial burden in the intestine. Furthermore, through the genetic screening in C. elegans, we found that SAM functioned in germline to enhance innate immunity via an H3K4 methyltransferase complex to upregulate the immune response genes, including irg-1 and T24B8.5. Intriguingly, SAM also protected mice from P. aeruginosa PA14 infection by reducing the bacterial burden in lung. These findings provided insight into the mechanisms of molecular connections among SAM diet, histone modifications and innate immunity.


Assuntos
Proteínas de Caenorhabditis elegans , Histonas , Animais , Camundongos , Caenorhabditis elegans/genética , Caenorhabditis elegans/microbiologia , S-Adenosilmetionina , Proteínas de Caenorhabditis elegans/genética , Proteínas de Caenorhabditis elegans/metabolismo , Imunidade Inata , Dieta
7.
Heliyon ; 10(3): e24992, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38318021

RESUMO

Objective: This study was to investigate the association between serum carotenoid levels and the prevalence of asthma, as well as the relationship between serum carotenoid levels and the risk of mortality among individuals with asthma. Methods: Data on five serum carotenoids (α-carotene, ß-carotene, ß-cryptoxanthin, lutein/zeaxanthin, and lycopene) were obtained from the National Health and Nutrition Examination Survey (NHANES) 2001-2006. Mortality data was extracted from the pertinent mortality records within the NHANES database, up to December 31, 2019. Logistic regression analysis was employed to investigate the association between serum carotenoid concentrations and asthma prevalence. Cox proportional hazards models were used to investigate the connection between serum carotenoids and mortality rates in asthma individuals. Results: Among the study population, 1569 (12.63 %) individuals were diagnosed with asthma, while 25.01 % of asthma patients died within a median follow-up duration of 15.5 (13.8-17.3) years. After controlling for all other variables, greater serum levels of certain carotenoids, such asα-carotene, ß-carotene, ß-cryptoxanthin, and lutein/zeaxanthin, were found to be substantially linked with a decreased prevalence of asthma. Furthermore, persons with asthma who had greater levels of serum carotenoids in the fourth quartile had a significantly lower risk of all-cause death compared to those in the first quartile. Specifically, the presence of α-carotene, ß-cryptoxanthin, and lutein/zeaxanthin was associated with reductions in all-cause mortality by 45 % (HR = 0.55 [0.36-0.84], Ptrend = 0.002), 38 % (HR = 0.62 [0.42-0.92], Ptrend = 0.004), and 45 % (HR = 0.55 [0.41-0.73], Ptrend<0.001), respectively. The above relationships are mostly linear and remain robust in sensitivity analyses. Conclusions: Our findings indicate that higher serum carotenoids are related with a reduced likelihood of mortality in asthmatic individuals.

8.
Int J Biol Macromol ; 260(Pt 1): 129430, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38228199

RESUMO

In this study, a new polysaccharide (PSPJ) with specific molecular weight and monosaccharide compositions was isolated and purified from the water extract of Panacis Japonici Rhizoma (PJR). 16S rRNA analysis and untargeted metabolomic analysis were used to assess PSPJ's efficacy in averting non-alcoholic fatty liver disease (NAFLD). This study indicated that PSPJ significantly reduced liver fat accumulation, the increase in blood lipids and ALT caused by HFD, indicating that PSPJ can prevent NAFLD. We demonstrated through cell experiments that PSPJ does not directly affect liver cells. The gut microbiota disorder and alterations in short-chain fatty acids (SCFAs) induced by the high-fat diet (HFD) were ameliorated by PSPJ, as evidenced by the analysis of 16S rRNA. In particular, supplementing PSPJ reduced the abundance of Turicibacter, Dubosiella, and Staphylococcus, and increased the abundance of Bacteroides, Blautia, and Lactobacillus. Untargeted metabolomic analysis shows that PSPJ improves liver metabolic disorders by regulating arachidonic acid metabolism, carbohydrate digestion and absorption, fatty acid biosynthesis, fatty acid metabolism and retinol metabolism. The findings of our investigation indicate that PSPJ has the potential to modulate liver metabolism through alterations in the composition of intestinal bacteria, hence preventing NAFLD.


Assuntos
Microbioma Gastrointestinal , Hepatopatia Gordurosa não Alcoólica , Panax , Camundongos , Animais , Hepatopatia Gordurosa não Alcoólica/metabolismo , RNA Ribossômico 16S/genética , RNA Ribossômico 16S/metabolismo , Panax/metabolismo , Fígado/metabolismo , Ácidos Graxos Voláteis/metabolismo , Polissacarídeos/farmacologia , Polissacarídeos/metabolismo , Dieta Hiperlipídica/efeitos adversos , Camundongos Endogâmicos C57BL
9.
Ther Apher Dial ; 28(1): 112-118, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37853934

RESUMO

INTRODUCTION: We investigated the clinical efficacy and safety of blood purification technology in patients with polymyositis/dermatomyositis. METHODS: In a study of 22 patients, 10 cases received blood purification treatment (5 cases received plasma exchange, 5 cases received plasma HA280 immunoadsorption), and 12 cases served as the control group. A 3-month follow-up was conducted to compare the clinical manifestations and laboratory examination. RESULTS: Symptoms and signs of patients in treatment group were significantly improved, and the hormone usage was lower than the control group. For patients with normal creatine kinase level and ferritin level below three times the upper limit of normal, there was a positive correlation between their N/L values and MDAAT scores. CONCLUSION: The results of this study suggest that blood purification therapy, including plasma HA280 immunoadsorption and plasma exchange, is an effective and safe treatment for patients with polymyositis/dermatomyositis, offering assistance in reducing hormone usage in the long-term.


Assuntos
Dermatomiosite , Polimiosite , Humanos , Dermatomiosite/tratamento farmacológico , Polimiosite/tratamento farmacológico , Troca Plasmática , Plasmaferese , Hormônios/uso terapêutico
10.
BMC Public Health ; 23(1): 2525, 2023 12 18.
Artigo em Inglês | MEDLINE | ID: mdl-38110915

RESUMO

BACKGROUND: Previous in vitro and animal experiments have shown that copper plays an important role in cardiovascular health. Dietary copper is the main source of copper in the human body and the association between dietary copper and cardiovascular disease remains unclear. Our study aimed to investigate the associations of dietary copper intake with the risk of major cardiovascular disease incidence, cardiovascular disease mortality, and all-cause mortality in Chinese adults. METHODS: Our study is based on Prospective Urban Rural Epidemiology China (PURE-China), a large prospective cohort study of 47 931 individuals aged 35-70 years from 12 provinces in China. Dietary intake was recorded using a validated semi-quantitative food frequency questionnaire designed specifically for the Chinese population. The daily intake of copper was obtained by multiplying the daily food intake with the nutrient content provided in the Chinese Food Composition Table (2002). Cox frailty proportional hazards models were developed to evaluate the association between dietary copper intake with mortality, major cardiovascular disease events, and their composite. RESULTS: A total of 45 101 participants (mean age: 51.1 ± 9.7 years old) with complete information were included in the current study. The mean dietary copper intake was 2.6 ± 1.1 mg/d. During the 482 833 person-years of follow-up, 2 644(5.9%) participants died, 4 012(8.9%) developed new cardiovascular diseases, and 5 608(12.4%) participants experienced the composite endpoint. Compared with those in the first and second quartile of dietary copper intake, individuals in the third and fourth quantile had higher risk of composite outcomes, all-cause death, cardiovascular disease death, major cardiovascular disease and stroke occurrences. The associations remained similar in the subgroup and sensitivity analyses. CONCLUSIONS: Our findings demonstrated that excessive dietary copper intake was associated with higher risks of death and cardiovascular diseases in Chinese adults. Further studies in populations with different dietary characteristics are needed to obtain dose-response relationships and to refine global dietary recommendations.


Assuntos
Doenças Cardiovasculares , Adulto , Humanos , Pessoa de Meia-Idade , Doenças Cardiovasculares/epidemiologia , Estudos Prospectivos , Cobre , Dieta , Estado Nutricional , Fatores de Risco
11.
Sci Total Environ ; 904: 166932, 2023 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-37690759

RESUMO

Shifts in rhizosphere soil microorganisms of dominant plants' response to climate change profoundly impact mountain soil ecosystem multifunctionality; relatively little is known about the relationship between them and how they depend on long-term environmental drivers. Here, we conducted analyses of rhizosphere microbial altitudinal pattern, community assembly, and co-occurrence network of 6 dominant plants in six typical vegetation zones ranging from 1350 to 2900 m (a.s.l.) in Helan Mountains by absolute quantitative sequencing technology, and finally related the microbiomes to root zone soil multifunctionality ('soil multifunctionality' hereafter), the environmental dependence of the relationship was explored. It was found that the altitudinal pattern of rhizosphere soil bacterial and fungal diversities differed significantly. Higher co-occurrence and more potential interactions of Stipa breviflora and Carex coninux were found at the lowest and highest altitudes. Bacterial α diversity, the identity of some dominant bacterial and fungal taxa, had significant positive or negative effects on soil multifunctionality. The effect sizes of positive effects of microbial diversity on soil multifunctionality were greater than those of negative effects. These results indicated that the balance of positive and negative effects of microbes determines the impact of microbial diversity on soil multifunctionality. As the number of microbes at the phylum level increases, there will be a net gain in soil multifunctionality. Our study reveals that geographical and climatic factors can directly or modulate the effects of soil properties on rhizosphere microbial diversity, thereby affecting the driving effect of microbial diversity on soil multifunctionality, and points to the rhizosphere bacterial diversity rather than the fungi being strongly associated with soil multifunctionality. This work has important ecological implications for predicting how multiple environment-plant-soil-microorganisms interactions in mountain ecosystems will respond to future climate change.


Assuntos
Ecossistema , Microbiota , Rizosfera , Solo , Microbiologia do Solo , Plantas , Bactérias , Fungos
12.
Cancer Med ; 12(15): 16119-16128, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37351559

RESUMO

BACKGROUND: Liver transplantation has made significant progress in recent decades. Lung cancer is one of the most frequently occurring cancers after liver transplantation. However, the risk of lung cancer among liver transplant patients compared with the general population is unclear. The aim of this meta-analysis was to assess the risk of developing lung cancer after liver transplantation. METHODS: All eligible studies published in PubMed, Web of Science, and Embase from database inception to April 2022 were included. Standardized incidence ratio was used to describe the increased risk of lung cancer in liver transplant recipients as compared with the general population. The random-effects model was used for the calculations. A funnel plot and Egger test were performed to assess the potential publication bias. RESULTS: Our meta-analysis included 15 studies, which involved 76,897 liver transplantation patients. Studies included in this review showed significant heterogeneity (I2 = 65.3%; p < 0.001), which required a random-effects model for effect pooling. The results indicated a significant higher risk of developing lung cancer in liver transplant patients than the general population with a pooled SIR of 2.06 (95% CI: 1.73, 2.46, p < 0.001). When stratified by region, no significant regional difference was observed. It showed a similarly doubled risk of lung cancer in Europe and North America, but an insignificantly increased risk in Asian populations. The sensitivity analysis by removal and substitution of each literature did not change the results. CONCLUSION: Our meta-analysis suggests that liver transplant patients are twice as likely as the general population to develop lung cancer. Further research on risk factors for the development of lung cancer after liver transplantation should be conducted and appropriate surveillance protocols should be developed to reduce the risk of its occurrence.


Assuntos
Transplante de Fígado , Neoplasias Pulmonares , Humanos , Transplante de Fígado/efeitos adversos , Incidência , Fatores de Risco , Neoplasias Pulmonares/epidemiologia , Neoplasias Pulmonares/etiologia , América do Norte
13.
Sci Rep ; 13(1): 8354, 2023 05 23.
Artigo em Inglês | MEDLINE | ID: mdl-37221406

RESUMO

Guillain-Barré syndrome (GBS) is an acute idiopathic polyneuropathy which is related to infection and immune mechanism. The exact pathogenesis of the disease is unknown and treatment is limited. Thus, the purpose of the study is to identify biomarkers of GBS serum and elucidate their involvement in the underlying pathogenesis of GBS that could help to treat GBS more accurately. Antibody array technology was used to detect the expression levels of 440 proteins in serum of 5 GBS group and 5 healthy control group. Sixty-seven differentially expressed proteins (DEPs) were identified by antibody array, among which FoLR1, Legumain, ErbB4, IL-1α, MIP-1α and IGF-2 were down-regulated, while 61 proteins were up-regulated. Bioinformatics analysis indicated that most DEPs were associated with leukocytes, among which IL-1α, SDF-1b, B7-1, CD40, CTLA4, IL-9, MIP-1α and CD40L were in the center of protein-protein interaction (PPI) network. Subsequently, the ability of these DEPs to distinguish GBS from healthy control was further evaluated. CD23 was identified by means of Random Forests Analysis (RFA) and verified by enzyme-linked immunosorbent assay (ELISA). The ROC curve result of CD23 respectively displayed that its sensitivity, specificity and AUC were 0.818, 0.800 and 0.824. We speculate that activation of leukocyte proliferation and migration in circulating blood might be associated with inflammatory recruitment of peripheral nerves, leading to the occurrence and development of GBS, but this conclusion still requires deeper confirmation. More importantly, central proteins may play a pivotal role in the pathogenesis of GBS. In addition, we detected IL-1α, IL-9, and CD23 in the serum of GBS patients for the first time, which may be promising biomarkers for the treatment of GBS.


Assuntos
Citocinas , Síndrome de Guillain-Barré , Humanos , Quimiocina CCL3 , Interleucina-9 , Anticorpos , Receptor 1 de Folato
14.
IEEE Trans Cybern ; PP2023 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-37022032

RESUMO

For various typical cases and situations where the formulation results in an optimal control problem, the linear quadratic regulator (LQR) approach and its variants continue to be highly attractive. In certain scenarios, it can happen that some prescribed structural constraints on the gain matrix would arise. Consequently then, the algebraic Riccati equation (ARE) is no longer applicable in a straightforward way to obtain the optimal solution. This work presents a rather effective alternative optimization approach based on gradient projection. The utilized gradient is obtained through a data-driven methodology, and then projected onto applicable constrained hyperplanes. Essentially, this projection gradient determines a direction of progression and computation for the gain matrix update with a decreasing functional cost; and then the gain matrix is further refined in an iterative framework. With this formulation, a data-driven optimization algorithm is summarized for controller synthesis with structural constraints. This data-driven approach has the key advantage that it avoids the necessity of precise modeling which is always required in the classical model-based counterpart; and thus the approach can additionally accommodate various model uncertainties. Illustrative examples are also provided in the work to validate the theoretical results.

15.
Virus Genes ; 59(3): 391-398, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36905534

RESUMO

Since the first appearance of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in 2019, the virus is still evolving and mutating until now. In this study, we collected 6 throat swabs from patients who diagnosed with COVID-19 in Inner Mongolia, China, to understand the entry of multiple SARS-CoV-2 variants into Inner Mongolia and analyze the relationships between variants and clinical features observed in infected patients. In addition, we performed a combined analysis of clinical parameters associated with SARS-CoV-2 variants of interest, pedigree analysis, and detection of single-nucleotide polymorphisms. Our results showed that the clinical symptoms were generally mild although some patients demonstrated some degree of liver function abnormalities, and the SARS-CoV-2 strain was related to the Delta variant (B.1.617.2), AY.122 lineage. The epidemiological investigations and clinical manifestations confirmed that the variant exhibits strong transmission, a high viral load, and moderate clinical symptoms. SARS-CoV-2 has undergone extensive mutations in various hosts and countries. Timely monitoring of virus mutation can help to monitor the spread of infection and characterize the diversity of genomic variants, thus limiting future waves of SARS-CoV-2 infection.


Assuntos
COVID-19 , SARS-CoV-2 , Humanos , SARS-CoV-2/genética , COVID-19/epidemiologia , China/epidemiologia , Mutação , Glicoproteína da Espícula de Coronavírus
16.
Front Nutr ; 9: 1004667, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36570138

RESUMO

Background: Several studies have estimated daily intake of resistant starch (RS), but no studies have investigated the relationship of RS intake with mortality. Objective: We aimed to examine associations between RS intake and all-cause and cause-specific mortality. Methods: Data from US National Health and Nutrition Examination Survey (NHANES) from 1999 to 2018 with 24-h dietary recall data was used in current study. The main exposure in this study was RS intake, and the main outcome was the mortality status of participants until December 31, 2019. The multivariable Cox proportional hazards regression models were developed to evaluate the hazard ratios (HRs) and 95% confidence interval (95% CI) of cardiovascular disease (CVD), cancer, and all-cause mortality associated with RS intake. Results: A total of 42,586 US adults [mean (SD) age, 46.91 (16.88) years; 22,328 (52.43%) female] were included in the present analysis. During the 454,252 person-years of follow-up, 7,043 all-cause deaths occurred, including 1,809 deaths from CVD and 1,574 deaths from cancer. The multivariable-adjusted HRs for CVD, cancer, and all-cause mortality per quintile increase in RS intake were 1 (95%CI, 0.97-1.04), 0.96 (95%CI, 0.93-1), and 0.96 (95%CI, 0.95-0.98), respectively. The associations remained similar in the subgroup and sensitivity analyses. Conclusion: Higher RS intake is significantly associated with lower cancer and all-cause mortality, but not significantly with CVD mortality. Future studies focusing on other populations with different food sources of RS and RS subtypes are needed to access the dose-response relationship and to improve global dietary recommendations.

17.
Front Cardiovasc Med ; 9: 897365, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35811708

RESUMO

Background: The appropriateness of using late lumen loss (LLL) as a surrogate endpoint was established in drug-eluting stent (DES) studies, but it was less supportive for drug-coated balloon (DCB) trials. Methods: Studies published until 23 June 2021 were searched from PubMed, EMBASE, Cochrane Library, and ClinicalTrials.gov. The correlation between LLL, MLD (minimal lumen diameter), and %DS (percentage diameter stenosis) and clinical endpoints was evaluated by linear regression. Standardized effect size and its 95% CIs were used to illustrate the difference among LLL, MLD, and %DS. Results: A total of 24 clinical trials were eligible [16 DCB vs. DES, 7 DCB vs. plain old balloon angioplasty (POBA), and 1 DCB vs. DES vs. POBA]. Thirteen (54.2%) trials used LLL as the primary endpoint. LLL, MLD, and %DS all had significant associations with clinical endpoints. For DCB vs. DES trials, the number of studies that reported inconsistent results between LLL and MLD was 12/16 (75.0%) and between LLL and %DS was 10/15 (66.7%), while in MLD and %DS, it was 1/16 (6.3%). The difference of standardized effect size between LLL and MLD was -0.47 (95% CI, -0.69 to -0.25, p < 0.001) and LLL and %DS was-0.31 (95%CI,-0.43 to-0.20, p < 0.001) while in MLD and %DS, there was no difference, 0.1 (95%CI,-0.02 to 0.22, p = 0.084). Conclusions: For DCB trials, an appropriate surrogate is associated with the control device. The traditional LLL could be used in the DCB vs. POBA trials. However, MLD/%DS should be considered a more suitable surrogate endpoint when comparing DCB with DES.

18.
J Proteomics ; 264: 104619, 2022 07 30.
Artigo em Inglês | MEDLINE | ID: mdl-35605915

RESUMO

Japanese encephalitis (JE) is just an acute encephalitis syndrome contributed to Japanese encephalitis virus (JEV) infection. It the chief causes of viral encephalitis in Asia. In recent years, association of JEV infection with neurological problems such as Guillain-Barré syndrome(GBS) had reported. Nevertheless, its potential pathogenic mechanism has not previously been reported. Therefore, it is urgent to study the relationship between peripheral nerve injury (PNI) and JEV infection. Here, we use the liquid chromatography-tandem mass spectrometry (LC-MS/MS) technique to make out the protein expression levels of mice sciatic nerve between JEV infection group and the sham group. In general, 4303 proteins were designated by MS, and 187 differentially expressed proteins(DEPs) were found. There were 105 proteins up-regulated in the injured sciatic nerve, and 82 proteins were down-regulated. Functional enrichment analysis of DEPs showed that the up-regulated proteins were mainly related to immune regulatory response, and down-regulated proteins were related to ribosomal structural components and translation. SIGNIFICANCE: The Japanese encephalitis virus, a member of the flavivirus, is a Mosquito borne virus. It leads to central nervous system injury by the immune response and inflammation in the brain. In addition, the virus also gave rise to PNI. It is a major public health problem in Asia. The diversity of clinical symptoms has brought serious challenges to the diagnosis and treatment of the disease. Label-Free Proteomics was undertaken to explore the potential mechanisms between JEV and peripheral nervous system in this study. It provided strong evidence that tissue damage is caused by the immune-mediated mechanisms rather than the virus, which offers a basis for the prevention of the disease and further looking for treatment targets.


Assuntos
Vírus da Encefalite Japonesa (Espécie) , Encefalite Japonesa , Traumatismos dos Nervos Periféricos , Animais , Cromatografia Líquida , Vírus da Encefalite Japonesa (Espécie)/fisiologia , Encefalite Japonesa/complicações , Encefalite Japonesa/prevenção & controle , Camundongos , Proteômica , Espectrometria de Massas em Tandem
19.
Cell Mol Bioeng ; 15(2): 219-230, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35401845

RESUMO

Introduction: Sevoflurane (SEV) has been shown to inhibit the malignant progression in many cancers, including colorectal cancer (CRC). However, it is not clear whether SEV regulates the progression of CRC by mediating the circular RNA (circRNA) axis. Methods: Different concentrations of SEV were used to treat CRC cells. Cell proliferation, migration and invasion were determined by cell counting kit 8 assay, colony formation assay and transwell assay. The expression of circ_0000423, microRNA (miR)-525-5p and sphingosine-1-phosphate phosphatase 1 (SGPP1) mRNA was measured by quantitative real-time PCR. Cell apoptosis was assessed using flow cytometry, and protein expression was measured by western blot analysis. Dual-luciferase reporter assay and RIP assay were performed to confirm the interactions among circ_0000423, miR-525-5p and SGPP1. Animal experiments were performed to explore the effect of SEV and circ_0000423 on CRC tumorigenesis. Results: SEV could inhibit CRC cell proliferation, migration and invasion. Circ_0000423 was upregulated in CRC and its expression could be reduced by SEV. Overexpressed circ_0000423 reversed the inhibitory effect of SEV on CRC cell proliferation, migration and invasion and the promotion effect on cell apoptosis. MiR-525-5p could be sponged by circ_0000423, and its overexpression also abolished the regulation of circ_0000423 on the progression of SEV-treated CRC cells. In addition, SGPP1 was confirmed to be a target of miR-525-5p, and its expression was positively regulated by circ_0000423. MiR-525-5p inhibitor promoted CRC cell progression under the treatment of SEV, while these effects could be overturned by SGPP1 silencing. Furthermore, the inhibition effect of SEV on CRC tumorigenesis also could be abolished by overexpressing circ_0000423. Conclusion: Our results showed that SEV inhibited CRC progression through the regulation of circ_0000423/miR-525-5p/SGPP1 axis. Supplementary Information: The online version contains supplementary material available at 10.1007/s12195-021-00717-5.

20.
Int J Biol Sci ; 17(4): 1026-1040, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33867826

RESUMO

Cashmere is a rare and specialised animal fibre, which grows on the outer skin of goats. Owing its low yield and soft, light, and warm properties, it has a high economic value. Here, we attempted to improve existing cashmere goat breeds by simultaneously increasing their fibre length and cashmere yield. We attempted this by knocking in the vascular endothelial growth factor (VEGF) at the fibroblast growth factor 5(FGF5) site using a gene editing technology and then studying its hair growth-promoting mechanisms. We show that a combination of RS-1 and NU7441 significantly improve the efficiency of CRISPR/Cas9-mediated, homologous-directed repair without affecting the embryo cleavage rate or the percentages of embryos at different stages. In addition, we obtained a cashmere goat, which integrated the VEGF gene at the FGF5 site, and the cashmere yield and fibre length of this gene-edited goat were improved. Through next-generation sequencing, we found that the up-regulation of VEGF and the down-regulation of FGF5 affected the cell cycle, proliferation, and vascular tone through the PI3K-AKT signalling pathway and at extracellular matrix-receptor interactions. Owing to this, the gene-edited cashmere goat showed impressive cashmere performance. Overall, in this study, we generated a gene-edited cashmere goat by integrating VEGF at the FGF5 site and provided an animal model for follow-up research on hair growth mechanisms.


Assuntos
Pelo Animal/crescimento & desenvolvimento , Fator 5 de Crescimento de Fibroblastos/genética , Técnicas de Introdução de Genes , Cabras/genética , Técnicas de Transferência Nuclear , Fator A de Crescimento do Endotélio Vascular/genética , Animais , Sistemas CRISPR-Cas , Células Cultivadas , Cabras/metabolismo , Pele/metabolismo , Têxteis , Transcriptoma
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